So there's only one train, and it's from Memphis to some place called Newberry, and also Dyersburg which I've heard is a piss hole
That sounds about right.
A few yrs ago Nashville was going to build one for themselves, to ferry people across that sprawling terrible traffic overpopulated hub city, but then they pissed themselves about the idea of poor people using it to get close to where the rich people live and tabled it.